Heh, that reminds me- I was snowboarding on a really warm day, and I thought about leaving my helmet in my car. I couldn't get my hand to release it, so I put it on my head. Later, on my favorite hill, a ski racer was warming up and slammed into me- I flipped over and landed on my head. Helmet came in handy there, and both of us were fine.

Damn skiers!